Climate claims need critical evaluation

Climate change provokes passionate arguments from both sides, but does the evidence support claims of humans’ role?


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With regards to Dr Jensen's article on climate claims need critical evaluation, perhaps Dr Jensen would wish to consider the following 1) His opinion that C02 increase causes warming is a theory - at the end of the last ice age CO2 levels increased by 100 parts per million and the avg temp rose by 5 degrees! 2) Dr Jensen speaks of human-induced global dimming - effect of aerosols in the air causing cooling in the 20 yrs between 1975-98 - yet refuses to accept that human induced factors can cause warming! Dr Jensen’s idea in this regard is not too far from the 'worthwhile' idea of the American coal industry that increasing C02 levels will fertilise the worlds crops - yet research has shown that a doubling of C02 raises rice yields by 6% and the higher temperature, less soil moisture and more ozone at ground level will in fact reduce crop production and by the way one can find an indirect link to this DVD by Fred Palmer erstwhile CEO of Western Fuels (Coal Fired Utilities) on Dr Jensen’s website. 3) The artic ice melt and the inconvenient truth that Dr Jensen speaks in relation to the Antarctic sea ice - even if just the Artic ice disappears - what effect does it have on human habitation? Cold comfort if such an event stops the Gulf Stream and triggers an Ice Age – which in such a case would have been brought on by C02 emissions! 4) The effect of deforestation and land clearing on carbon sinks and the effect on extinction of species - this is not proof of human induced change? The inconvenient truth is we have only one planet - and the ability of the planet to sustain an ever increasing population and resource consumption without adversely affecting the climate is wishful thinking. Everyone of us needs to ask just one question, if any of our children had a disease which we couldn’t ascertain the cause of - would we err on the side of caution? For sceptics like Dr Jensen, the onus of proof seems to be - well we have no end of the world catastrophes - so there is no C02 and hence human induce climate change - they fail to point out that climate change can be a gradual process slowly eroding our way of life - and Dr Jensen's answer to that is, lets do nothing because the science in his view i inexact. I hold no hope for the planet - because as a race we like status quo rather than doing something which would affect our life styles!

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